yum install postgresql-server postgresql-contrib
sudo postgresql-setup initdb
sudo systemctl start postgresql
sudo systemctl enable postgresql
默认位置/var/lib/pgsql/{version}/data
'''pass_socket.py | |
Written September 14, 2012 | |
Released into the public domain. | |
Works on Python 2.6, 2.7, and may need minor changes for 3+. | |
''' | |
import multiprocessing |
func route(res http.ResponseWriter, req *http.Request) { | |
path := req.URL.Path | |
log.Println(req.RemoteAddr[0:strings.LastIndex(req.RemoteAddr, ":")], req.Method, path) | |
} | |
//OutPut: 2018/07/11 14:54:35 [::1] GET /favicon.ic |
var ( | |
nullInt *int | |
nullTime *time.Time | |
nullString string | |
) | |
row := course.QueryRow("SELECT NULL,NULL,NULL FROM Table", LineID) | |
DBErr = row.Scan(&nullInt, &nullTime, &nullString); | |
if DBErr != nil { | |
return |
<!DOCTYPE html> | |
<head> | |
<title>Stay Standalone</title> | |
<meta name="apple-mobile-web-app-capable" content="yes"> | |
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no"> | |
<script src="stay_standalone.js" type="text/javascript"></script> | |
</head> | |
<body> | |
<ul> | |
<li><a href="http://google.com/">Remote Link (Google)</a></li> |
# 编译boost | |
``` bash | |
./bootstrap.sh --with-python=/usr/local/bin/python3.6 --with-python-root=/usr/local/python3.6.7 | |
./bootstrap.sh --with-python=/usr/local/bin/python3.6 | |
./b2 --clean | |
./b2 --with-python | |
./b2 install --prefix=/data/zhangkai/.local/boost | |
``` |
pipe = subprocess.Popen([FFMPEG_BIN, | |
'-y', # (optional) overwrite output file if it exists | |
'-f', 'rawvideo', | |
#'-loglevel','error', | |
#'-probesize','10M', | |
'-s', framesize, #'420x360', # size of one frame | |
'-pix_fmt', 'bgr24', | |
'-r', str(self.fps), # frames per second | |
'-i', '-', # The input comes from a pipe | |
'-an', # Tells FFMPEG not to expect any audio |
yum install gcc openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel | |
./configure --enable-ipv6 --enable-optimizations --with-ensurepip --enable-shared --prefix="/usr/local/python3.6.7" | |
# --with-optimizations --with-lto 是编译时的优化选项 --with-valgrind 不明 --prefix="/usr/local" --enable-profiling | |
#不指定path,安装完成后python会自动把自己加到系统目录里 | |
sudo make -j4 | |
sudo make install | |
#在/etc/ld.so.conf.d下创建python3.conf写入/usr/local/python3.6.7/lib | |
ldconfig |
import numpy | |
from skimage import io | |
import time | |
from PIL import Image | |
import cv2 | |
import sys, os | |
sys.path.append(os.path.join(os.path.dirname(__file__), '..')) | |
from config import projectPath |
ret, imgBytes = cv2.imencode(".jpg", cv2_img) | |
if ret: | |
bytes = imgBytes.tobytes() |